CN212453660U - Arm support device and concrete pump truck - Google Patents
Arm support device and concrete pump truck Download PDFInfo
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- CN212453660U CN212453660U CN202020557075.0U CN202020557075U CN212453660U CN 212453660 U CN212453660 U CN 212453660U CN 202020557075 U CN202020557075 U CN 202020557075U CN 212453660 U CN212453660 U CN 212453660U
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Abstract
The utility model provides a cantilever crane device and mobile concrete pump, wherein, the cantilever crane device includes: the head end of the first arm frame component is hinged with the rotary table, the tail end of the first arm frame component is hinged with the second arm frame component, the first arm frame component is positioned in a first rotating surface, the third arm frame component is positioned in a second rotating surface, and the second arm frame component is transited from the first rotating surface to the second rotating surface and is hinged with the third arm frame component; and at least parts of the last two sections of arm supports of the third arm support assembly are arranged on the side of the rotary table when the arm support device is in a folded state. Through the technical scheme of the utility model, improve the cantilever crane device under the condition of the whole length under the expansion state, do not increase the holistic width of mobile concrete pump and height, satisfy the requirement of mobile concrete pump's road condition of traveling, and improve mobile concrete pump's cement conveying distance.
Description
Technical Field
The utility model relates to a mobile concrete pump technical field particularly, relates to a cantilever crane device and a mobile concrete pump.
Background
Concrete is conveyed to a designated position by the concrete pump truck through the conveying pipe on the folding arm support, and the conveying position is changed through the rotation of the rotary table and the unfolding and folding of the folding arm support, so that the requirement of conveying concrete to different positions is met. At present, limited by the vehicle body space of the concrete pump truck and the traffic regulations, when the number of chassis bridges is constant, the vehicle body space needs to be fully utilized to improve the bridge length ratio, in the prior art, as in the patent with the publication number of CN102425308A, an arm support device is provided, the tail end of a fifth arm support exceeds a rotary table and further extends to one side of the rotary table close to a cab, and the tail end of the fifth arm support further extends to the upper part of the cab to fully utilize the upper space of the cab, but the fifth arm support and a sixth arm support and a seventh arm support behind the fifth arm support are both arranged above the cab, so that the overall height of the concrete pump truck is increased, and the passability of the concrete pump truck is reduced.
SUMMERY OF THE UTILITY MODEL
The utility model discloses aim at solving at least one of the technical problem that exists among prior art or the correlation technique
In view of this, an object of the present invention is to provide a boom device.
Another object of the utility model is to provide a concrete pump truck correspondingly.
In order to realize at least one of the above-mentioned purpose, according to the utility model discloses a technical scheme of first aspect provides a cantilever crane device, and the cantilever crane device is located including the revolving stage on, the cantilever crane device includes:
the head end of the first arm frame component is hinged with the rotary table, the tail end of the first arm frame component is hinged with the second arm frame component, the first arm frame component is positioned in a first rotating surface, the third arm frame component is positioned in a second rotating surface, and the second arm frame component is transited from the first rotating surface to the second rotating surface and is hinged with the third arm frame component; and at least parts of the last two sections of arm supports of the third arm support assembly are arranged on the side of the rotary table when the arm support device is in a folded state.
According to the arm support device provided by the utility model, the first arm support component, the second arm support component and the third arm support component are hinged in sequence, so that the first arm support component, the second arm support component and the third arm support component can rotate around the self hinge point relative to other arm support components, one end of the first arm support component far away from the second arm support component is hinged with the rotary table, so that the first arm support component can rotate around the hinge point relative to the rotary table, and the second arm support component and the third arm support component are driven to rotate relative to the rotary table, so that the third arm support component can move to different positions relative to the rotary table, wherein, the arm support device can be switched between a folding state and an unfolding rotary table, so that the arm support device occupies smaller space when in the folding state, the passability of the arm support device in the transportation process is improved, and the arm support device is unfolded and extended when in the unfolding state, the concrete pump truck can convey concrete to different positions through the boom device by rotating the turntable, and the second boom assembly and the third boom assembly are arranged below the highest point of the first boom assembly in a folded state, so that the height of the boom device can be limited by limiting the highest point of the first boom assembly in the folded state of the boom device, the overall height of the boom device in the folded state can be controlled, the passability of the boom device is improved, and further, the first boom assembly and the third boom assembly are respectively arranged on the first rotating surface and the second rotating surface, so that the first boom assembly and the third boom assembly are mutually staggered in the width direction of the concrete pump truck, and the space of the concrete pump truck in the width direction is fully utilized; the second arm support assembly is transited from the first rotating surface to the second rotating surface and is hinged with the third arm support assembly, wherein the arm support device is in a folded state, and at least part of the last two arm supports of the third arm support assembly is arranged on the side of the rotary table. Namely, at least part of the third jib assembly extends to one side of the rotary table along the width direction of the concrete pump truck, the space of the rotary table at one side of the concrete pump truck in the width direction is fully utilized, the whole width and height of the concrete pump truck are not increased under the condition of improving the whole length of the jib device in an unfolded state, the requirement of road driving conditions is easily met, and the cement conveying distance of the concrete pump truck is improved.
It is noted that at least a portion of the turret is disposed within the first plane of rotation by the turret being hingedly coupled to the first arm support assembly.
In the above technical solution, the first boom assembly includes: a first section of arm support and a second section of arm support; the second boom assembly comprises: a third section of arm support; the third boom assembly includes: a fourth arm frame, a fifth arm frame, a sixth arm frame and a seventh arm frame; the first arm frame, the second arm frame, the third arm frame, the fourth arm frame, the fifth arm frame, the sixth arm frame and the seventh arm frame are hinged in sequence, and one end, far away from the second arm frame, of the first arm frame is hinged with the rotary table.
In the technical scheme, the first arm support component comprises a first arm support section and a second arm support section, the second arm support component comprises a third arm support section, the third arm support component comprises a fourth arm support section, a fifth arm support section, a sixth arm support section and a seventh arm support section, wherein, the first arm frame, the second arm frame, the third arm frame, the fourth arm frame, the fifth arm frame, the sixth arm frame and the seventh arm frame are hinged in sequence, so that each arm frame can rotate around a hinge point relative to any other arm frame, one end of the first arm frame far away from the second arm frame is hinged with the rotary table, the second section of arm frame, the third section of arm frame, the fourth section of arm frame, the fifth section of arm frame, the sixth section of arm frame and the seventh section of arm frame are supported by the first section of arm frame to rotate relative to the rotary table around a hinge point of the first section of arm frame and the rotary table, so that the arm frame device is switched between a folding state and an unfolding state.
In the above technical scheme, the sixth section of boom includes a first sub-boom and a second sub-boom hinged to each other, the first sub-boom is hinged to the fifth section of boom, and the second sub-boom is hinged to the seventh section of boom, wherein when the boom device is in a folded state, the first sub-boom and the second sub-boom are in the same length direction.
In the technical scheme, the sixth section of arm frame comprises a first sub-arm frame and a second sub-arm frame which are hinged to each other, so that the seven section of arm frame of the arm frame device is increased to an eight section of arm frame, and the flexibility degree of the arm frame device in operation is increased.
In the above technical solution, in the folded state, the sixth arm is erected above the second arm, the third arm, the fourth arm and the fifth arm, the first rotation surface and the second rotation surface are parallel to each other and spaced apart from each other, and at least part of the second sub-arm and the seventh arm are arranged on the side of the turntable.
In the technical scheme, when the boom device is in a folded state, a sixth boom and a seventh boom are arranged on the same straight line, so that one end of the seventh boom, which is close to the turntable, extends to one side of the turntable along the width direction of the concrete pump truck, and the sixth boom is arranged above the second boom, the third boom, the fourth boom and the fifth boom, so that in the process of switching the boom device from the folded state to the unfolded state, the first sub-boom can be firstly folded upwards to avoid the interference between the sixth boom, the seventh boom and the bottom of the turntable when the first boom rotates relative to the turntable; in addition, when the arm support is in a folded state, the first arm support and the second arm support are positioned on the first rotating surface, the fourth arm support to the seventh arm support are positioned on the second rotating surface, the first rotating surface and the second rotating surface are parallel to each other and are spaced apart, and the third arm support extends between the first rotating surface and the second rotating surface. That is to say, in the width direction of the concrete pump truck, a first rotating surface comprising a first section of arm support and a second rotating surface comprising a fourth section of arm support to a seventh section of arm support are spaced from each other, and the two rotating surfaces are connected through a third section of arm support, namely, the third section of arm support is designed into a curved shape, so that one end of the third section of arm support is positioned in the first rotating surface, and the other end of the third section of arm support is positioned in the second rotating surface. By the method, the height of the pump truck can be reduced, and meanwhile, the space in the width direction on the chassis of the concrete pump truck is fully utilized; at least part of the second sub-arm support and the seventh section of arm support are arranged on the side of the rotary table, so that at least part of the second sub-arm support and the seventh section of arm support are arranged on one side of the rotary table along the width direction of the concrete pump truck, the space on one side of the rotary table along the width direction of the concrete pump truck is fully utilized, the width and the height of the concrete pump truck are not increased under the condition of increasing the total length of the arm support device in the unfolding state, and the requirement of the concrete pump truck on road running conditions is met.
In the above technical solution, the second arm support can be folded in a first direction with respect to the first arm support, the third arm support can be folded in the first direction with respect to the second arm support, the fourth arm support can be folded in the first direction with respect to the third arm support, the fifth arm support can be folded in the first direction with respect to the fourth arm support, the first sub arm support can be folded in a second direction with respect to the fifth arm support, the second sub arm support can be folded in the first direction with respect to the first sub arm support, and the seventh arm support can be folded in the second direction with respect to the second sub arm support, where the first direction is opposite to the second direction.
In the technical scheme, in the switching process from the unfolded state to the folded state, the second section of arm frame is folded relative to the first section of arm frame along the first direction, the third section of arm frame is folded relative to the second section of arm frame along the first direction, the fourth section of arm frame is folded relative to the third section of arm frame along the first direction, the fifth section of arm frame is folded relative to the fourth section of arm frame along the first direction, the first sub-arm frame is folded relative to the fifth section of arm frame along the second direction, and the seventh section of arm frame is folded relative to the second sub-arm frame along the second direction, namely the folding modes of the first section of arm frame, the second section of arm frame and the third section of arm frame are R-shaped; the fourth arm frame, the fifth arm frame and the first sub-arm frame are folded in a Z shape; the folding mode of the fifth section of arm support, the first sub-arm support, the second sub-arm support and the seventh section of arm support is reverse R-shaped, the R-shaped folding enables the layout of the arm support device to be more compact, the Z-shaped folding enables the arm support to be lower in opening space, and the arm support device can move rapidly when being opened and folded.
The first direction is clockwise, and the second direction is anticlockwise.
In the above technical scheme, in the switching process from the unfolded state to the folded state, the second section of arm frame is folded along the first direction relative to the first section of arm frame, the third section of arm frame is folded along the first direction relative to the second section of arm frame, the fourth section of arm frame is folded along the second direction relative to the third section of arm frame, the fifth section of arm frame is folded along the first direction relative to the fourth section of arm frame, the first sub-arm frame is folded along the second direction relative to the fifth section of arm frame, and the seventh section of arm frame is folded along the second direction relative to the second sub-arm frame, wherein the first direction is opposite to the second direction.
In the technical scheme, in the switching process from the unfolded state to the folded state, the second section of arm frame is folded relative to the first section of arm frame along the first direction, the third section of arm frame is folded relative to the second section of arm frame along the first direction, the fourth section of arm frame is folded relative to the third section of arm frame along the second direction, the fifth section of arm frame is folded relative to the fourth section of arm frame along the first direction, the first sub-arm frame is folded relative to the fifth section of arm frame along the second direction, and the seventh section of arm frame is folded relative to the second sub-arm frame along the second direction, namely the folding modes of the first section of arm frame, the second section of arm frame and the third section of arm frame are R-shaped; the folding mode of the third section of arm frame, the fourth section of arm frame and the fifth section of arm frame is Z-shaped, and the folding mode of the fifth section of arm frame, the first sub-arm frame, the second sub-arm frame and the seventh section of arm frame is reverse R-shaped, wherein the R-shaped folding mode enables the layout of the arm frame device to be more compact, the Z-shaped folding mode enables the arm frame device to be lower in opening space and rapid in action during opening and folding.
The first direction is clockwise, and the second direction is anticlockwise.
In the above technical scheme, the boom device is in a folded state, a hinge point of the seventh boom and the second sub boom is located in front of the turntable, a hinge point of the first boom and the second boom, a hinge point of the second boom and the third boom, a hinge point of the third boom and the fourth boom, a hinge point of the fourth boom and the fifth boom, a hinge point of the fifth boom and the first sub boom, and a hinge point of the first sub boom and the second sub boom are located behind the turntable.
In the technical scheme, the hinge point of the seventh section of arm support and the second sub-arm support is located in front of the rotary table, so that when the arm support device is in a folded state, the seventh section of arm support is stored on the side of the rotary table, and the overall height of the arm support device is reduced by utilizing the space on the side of the rotary table.
In the above technical solution, any one or more of the first section of arm support, the second section of arm support, the third section of arm support, the fourth section of arm support, the fifth section of arm support, the sixth section of arm support and the seventh section of arm support is provided with a bending structure.
In the technical scheme, any one or more of a first section of arm support, a second section of arm support, a third section of arm support, a fourth section of arm support, a fifth section of arm support, a first sub-arm support, a second sub-arm support and a seventh section of arm support is provided with a bending structure, so that any one of the first section of arm support, the second section of arm support, the third section of arm support, the fourth section of arm support, the fifth section of arm support, the first sub-arm support, the second sub-arm support and the seventh section of arm support is positioned in different rotating surfaces, or one section of the arm support or a plurality of sections of the arm supports are in a group and are respectively positioned in different rotating surfaces, so as to fully utilize the space of the concrete pump truck in the width direction, for example, by arranging a bending structure on the third section of arm support, therefore, the first section of arm support and the second section of arm support are positioned in the first rotating surface, and the fourth section of arm support, the fifth section of arm support, the first sub-arm support, the second sub-arm support and the seventh section of arm support are positioned in the second rotating surface.
In the above technical solution, in the folded state, an included angle between the seventh section of arm support and the second sub-arm support is 0 ° to 90 °.
In the technical scheme, the included angle between the seventh section of arm support and the second sub-arm support is 0-90 degrees in the folded state, so that the seventh section of arm support is prevented from interfering with the bottom of the rotary table in the process of switching the arm support device from the folded state to the unfolded state.
In the above technical solution, the method further comprises: and in any two adjacent sections of arm frames, one end of each oil cylinder is hinged with the arm frame in the previous section, the other end of each oil cylinder is hinged with the arm frame in the next section, and the oil cylinders drive the two adjacent sections of arm frames to rotate relatively.
In the technical scheme, one end of each oil cylinder is hinged with the previous section of arm frame and the other end of each oil cylinder is hinged with the next section of arm frame in any two adjacent sections of arm frames, so that the two adjacent sections of arm frames are driven to rotate relatively by the oil cylinders to change the included angle of the two adjacent sections of arm frames, and the two adjacent sections of arm frames are switched between the folded state and the unfolded state.
The utility model discloses a second aspect technical scheme provides a concrete pump truck, include: a chassis; the rotary table is arranged on the chassis; in the arm support device according to any of the first aspect technical solutions, the first section of the arm support device is hinged to the top of the rotary table.
According to the utility model provides a concrete pump truck is through locating the revolving stage on the vehicle bottom dish, and the first section cantilever crane of cantilever crane device articulates in the top of revolving stage to bear the cantilever crane device through the vehicle bottom dish, so have the technical effect of the arbitrary technical scheme of above-mentioned first aspect, no longer give consideration to here.
Additional aspects and advantages of the invention will be set forth in part in the description which follows, or may be learned by practice of the invention.
Drawings
Fig. 1 shows a schematic structural view of a first boom assembly according to an embodiment of the present invention;
fig. 2 shows a schematic structural diagram of a second section of arm support and a third section of arm support according to an embodiment of the present invention;
fig. 3 shows a schematic structural diagram of a third section of arm support and a fourth section of arm support according to an embodiment of the present invention;
fig. 4 shows a schematic structural diagram of a fourth section of arm support and a fifth section of arm support according to an embodiment of the present invention;
fig. 5 shows a schematic structural diagram of a fifth section of boom, a first sub-boom, a second sub-boom, and a seventh section of boom according to an embodiment of the present invention;
fig. 6 shows a schematic structural view of a boom device according to an embodiment of the present invention in a folded state;
fig. 7 shows a schematic structural diagram of a boom device according to an embodiment of the present invention in a deployed state;
fig. 8 shows a schematic view of a concrete pump truck according to an embodiment of the invention;
fig. 9 shows a schematic view of a concrete pump truck according to an embodiment of the invention;
fig. 10 shows a schematic view of a concrete pump truck according to an embodiment of the present invention.
Wherein, the correspondence between the reference numbers and the component names in fig. 1 to 10 is:
10 a first arm support assembly, 12 a first arm support assembly, 14 a second arm support assembly, 20 a second arm support assembly, 22 a third arm support assembly, 222 a bending structure, 30 a third arm support assembly, 32 a fourth arm support assembly, 34 a fifth arm support assembly, 36 a sixth arm support assembly, 362 a first sub arm support assembly, 364 a second sub arm support assembly, 38 a seventh arm support assembly, 40 a rotary table and 50 a chassis.
Detailed Description
In order that the above objects, features and advantages of the present invention can be more clearly understood, a more particular description of the invention will be rendered by reference to the appended drawings, which are illustrated in the appended drawings. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the scope of the present invention is not limited by the specific embodiments disclosed below.
Some embodiments according to the invention are described below with reference to fig. 1 to 10.
Example 1
As shown in fig. 6 and 10, according to an embodiment of the present invention, a boom apparatus is provided, defining:
the boom device is provided on a turntable 40 including the turntable 40, and the boom device includes: the arm support comprises a first arm support assembly 10, a second arm support assembly 20 and a third arm support assembly 30, wherein the first arm support assembly 10, the second arm support assembly 20 and the third arm support assembly 30 are sequentially hinged, so that the first arm support assembly 10, the second arm support assembly 20 and the third arm support assembly 30 can respectively rotate relative to other arm support assemblies around self hinge points; the end of the first boom assembly 10 remote from the second boom assembly 20 is hinged to the turntable 40, allowing the first boom assembly 10 to rotate relative to the turntable 40 about the hinge point, and rotates the second boom assembly 20 and the third boom assembly 30 relative to the turntable 40, wherein, the arm support device can be switched between a folding state and an unfolding rotary table 40, and when the arm support device is in the folding state, the arm support device occupies smaller space so as to be beneficial to improving the passability of the arm support device in the transportation process, in the unfolded state, the arm support device is unfolded and extended, and the concrete pump truck can convey concrete to different positions through the arm support device by the rotation of the rotary table 40, in the folded position, the second and third boom assemblies 20, 30 are disposed below the highest point of the first boom assembly 10, the height of the boom device can be limited by limiting the highest point of the first boom assembly 10, and the passability of the boom device is improved.
Further, the first arm support assembly 10 and the third arm support assembly 30 are respectively arranged in a first rotating surface and a second rotating surface, and the second arm support assembly 20 is transited from the first rotating surface to the second rotating surface and is hinged with the third arm support assembly 30; the first boom assembly 10, the second boom assembly 20 and the third boom assembly 30 are staggered from each other in the width direction of the concrete pump truck to fully utilize the space in the width direction of the concrete pump truck.
Further, at least part of the third boom assembly 30 extends to one side of the turntable 40 in the width direction of the concrete pump truck, so that the space of the turntable 40 on one side of the concrete pump truck in the width direction is fully utilized, the width and the height of the whole concrete pump truck are not increased under the condition that the overall length of the boom device in the unfolded state is increased, the requirement of road driving conditions is easily met, and the cement conveying distance of the concrete pump truck is increased.
Example 2
As shown in fig. 1, 2, 3, 4, 5 and 10, in addition to the features of the above embodiments, further define:
the first boom assembly 10 comprises a first boom 12 and a second boom 14, the second boom assembly 20 comprises a third boom 22, the third boom assembly 30 comprises a fourth boom 32, a fifth boom 34, a sixth boom 36 and a seventh boom 38, wherein the first boom 12, the second boom 14, the third boom 22, the fourth boom 32, the fifth boom 34, the sixth boom 36 and the seventh boom 38 are hinged in sequence, so that each boom can rotate relative to any other boom around a hinge point, one end of the first boom 12, which is far away from the second boom 14, is hinged to a turntable 40, so that the first boom 12 supports the hinge point of the second boom 14, the third boom 22, the fourth boom 32, the fifth boom 34, the sixth boom 36 and the seventh boom 38 to rotate relative to the turntable 40 around the hinge point of the first boom 12 and the turntable 40, the arm support device is switched between a folding state and an unfolding state.
Further, the sixth section of arm support 36 includes a first sub-arm support 362 and a second sub-arm support 364 that are hinged to each other, and the first sub-arm support 362 is hinged to the fifth section of arm support 34, and the second sub-arm support 364 is hinged to the seventh section of arm support 38, where when the arm support device is in a folded state, the first sub-arm support 362 and the second sub-arm support 364 are in the same length direction.
Example 3
As shown in fig. 5, 6 and 10, in addition to the features of any of the above embodiments, further defined are:
when the boom device is in a folded state, the first sub boom 362 and the second sub boom 364 are in a straight line, so that one end of the second sub boom 364 close to the turntable 40 extends to one side of the turntable 40 in the width direction of the concrete pump truck, and the first sub boom 362 and the second sub boom 364 are arranged above the second section boom 14, the third section boom 22, the fourth section boom 32 and the fifth section boom 34, so that in the process of switching the boom device from the folded state to the unfolded state, the second sub boom 364 can be firstly folded upwards, and the interference between the second sub boom 364 and the bottom of the turntable 40 and the interference between the seventh section boom 38 and the bottom of the second section boom 364 when the first section boom 12 rotates relative to the turntable 40 are avoided.
Further, when the arm support is in the folded state, the first arm support 12 and the second arm support 14 are located on the first rotating surface, the fourth arm support 32 to the seventh arm support 38 are located on the second rotating surface, the first rotating surface and the second rotating surface are parallel to each other and spaced apart, and the third arm support 22 extends between the first rotating surface and the second rotating surface. That is, in the width direction of the concrete pump truck, a first rotating surface including the first section arm support 12 and the second section arm support 14 and a second rotating surface including the fourth section arm support 32 to the seventh section arm support 38 are spaced from each other, and the two rotating surfaces are connected by the third section arm support 22, that is, the third section arm support 22 is designed to be curved, so that one end of the third section arm support is located in the first rotating surface, and the other end of the third section arm support is located in the second rotating surface. In this way, the height of the pump truck can be reduced, and the space in the width direction on the concrete pump truck chassis 50 is fully utilized.
Further, at least part of the second sub-boom 364 and the seventh section of boom 38 are arranged at the side of the turntable, so that at least part of the second sub-boom 364 and the seventh section of boom 38 are arranged at one side of the turntable 40 along the width direction of the concrete pump truck, and the space at one side of the turntable 40 along the width direction of the concrete pump truck is fully utilized, and the width and the height of the concrete pump truck are not increased under the condition of increasing the total length of the boom device in the unfolded state, so as to meet the requirement of the concrete pump truck on the road driving condition.
Example 4
As shown in fig. 6, 7 and 8, in addition to the features of any of the above embodiments, further defined are:
in the switching process from the unfolded state to the folded state, the second section of arm support 14 is folded along the first direction relative to the first section of arm support 12, the third section of arm support 22 is folded along the first direction relative to the second section of arm support 14, the fourth section of arm support 32 is folded along the first direction relative to the third section of arm support 22, the fifth section of arm support 34 is folded along the first direction relative to the fourth section of arm support 32, the first sub-arm support 362 is folded along the second direction relative to the fifth section of arm support 34, and the seventh section of arm support 38 is folded along the second direction relative to the second sub-arm support 364, namely the folding modes of the first section of arm support 12, the second section of arm support 14 and the third section of arm support are in an R shape; the fourth arm support 32, the fifth arm support 34 and the first sub-arm support 362 are folded in a Z shape; the folding mode of the fifth arm support 34, the first sub arm support 362, the second sub arm support 364 and the seventh arm support 38 is reverse R-shaped, the R-shaped folding enables the layout of the arm support device to be more compact, the Z-shaped folding enables the arm support to be lower in opening space, and the arm support device can move quickly when being opened and folded.
Example 5
As shown in fig. 7 and 9, in addition to the features of any of the above embodiments, further defined are:
in the switching process from the unfolded state to the folded state, the second arm support 14 is folded relative to the first arm support 12 along the first direction, the third arm support 22 is folded relative to the second arm support 14 along the first direction, the fourth arm support 32 is folded relative to the third arm support 22 along the second direction, the fifth arm support 34 is folded relative to the fourth arm support 32 along the first direction, the first sub-arm support 362 is folded relative to the fifth arm support 34 along the second direction, and the seventh arm support 38 is folded relative to the second sub-arm support 364 along the second direction, namely the first arm support 12, the second arm support 14 and the third arm support are folded in an R shape; the folding mode of the third section of arm support 22, the fourth section of arm support 32 and the fifth section of arm support 34 is Z-shaped, and the folding mode of the fifth section of arm support 34, the first sub-arm support 362, the second sub-arm support 364 and the seventh section of arm support 38 is reverse R-shaped, wherein the R-shaped folding mode enables the layout of the arm support device to be more compact, the Z-shaped folding mode enables the arm support device to be lower in opening space and quick in action during opening and folding.
Example 6
As shown in fig. 8 and 9, in addition to the features of any of the above embodiments, further defined are:
the hinge point of the seventh arm support 38 and the second sub-arm support 364 is located in front of the rotary table 40, so that when the arm support device is in a folded state, the seventh arm support 38 is accommodated at the side of the rotary table 40, and the overall height of the arm support device is reduced by using the space at the side of the rotary table 40.
A hinge point of the first arm support 12 and the second arm support 14, a hinge point of the second arm support 14 and the third arm support 22, a hinge point of the third arm support 22 and the fourth arm support 32, a hinge point of the fourth arm support 32 and the fifth arm support 34, a hinge point of the fifth arm support 34 and the first sub arm support 362, and a hinge point of the first sub arm support 362 and the second sub arm support 364 are located behind the turntable 40, so that when the arm support device is in a folded state, the first arm support 12, the second arm support 14, the third arm support 22, the fourth arm support 32, the fifth arm support 34, and the first sub arm support 362 are arranged behind the turntable 40 to utilize the upper space of the vehicle body.
Wherein the front and rear are shown by the arrows in figure 8.
Example 7
As shown in fig. 6 and 10, in addition to the features of any of the above embodiments, further defined are:
any one or more of the first section of arm frame 12, the second section of arm frame 14, the third section of arm frame 22, the fourth section of arm frame 32, the fifth section of arm frame 34, the first sub-arm frame 362, the second sub-arm frame 364 and the seventh section of arm frame 38 is/are provided with a bending structure 222, so that any one of the first section of arm frame 12, the second section of arm frame 14, the third section of arm frame 22, the fourth section of arm frame 32, the fifth section of arm frame 34, the first sub-arm frame 362, the second sub-arm frame 364 and the seventh section of arm frame 38 is/are positioned in different rotating planes, or one or more of the sections of arm frames are/are a group and are respectively positioned in different rotating planes, so as to fully utilize the space in the width direction of the concrete pump truck.
Optionally, a bending structure 222 is disposed on the third arm support 22, so that the first arm support 12 and the second arm support 14 are located in a first rotation plane, the third arm support 22 is located in a second rotation plane, and the fourth arm support 32, the fifth arm support 34, the first sub-arm support 362, the second sub-arm support 364, and the seventh arm support 38 are located in a second rotation plane.
Example 8
As shown in fig. 8 and 9, in addition to the features of any of the above embodiments, further defined are:
in the folded state, an included angle between the seventh section of boom 38 and the second sub-boom 364 is 0 ° to 90 °, and in the process of switching the boom device from the folded state to the unfolded state, interference between the seventh section of boom 38 and the bottom of the turntable 40 is avoided.
Example 9
In addition to the features of any of the embodiments described above, further defined are:
the arm support device further comprises: and in any two adjacent arm frames, one end of each oil cylinder is hinged with the previous arm frame, and the other end of each oil cylinder is hinged with the next arm frame, so that the two adjacent arm frames are driven to rotate relatively by the oil cylinders, the included angle of the two adjacent arm frames is changed, and the two adjacent arm frames can be switched between a folded state and an unfolded state.
Example 10
As shown in fig. 8 and 9, according to another embodiment of the present invention, there is provided a concrete pump truck defining:
the concrete pump truck includes: a chassis 50; the rotary table 40 is arranged on the chassis 50; in the arm support device in any of the above embodiments, the first arm support 12 of the arm support device is hinged to the top of the turntable 40.
Example 11
As shown in fig. 6 and 8, according to a specific embodiment of the present invention, a boom device is provided, which defines:
the arm support device comprises eight sections of arm supports, each arm support is sequentially hinged, an oil cylinder is arranged between two adjacent sections of arm supports of the arm support device, one end of each oil cylinder is hinged with the previous section of arm support, the other end of each oil cylinder is hinged with the next section of arm support through a connecting rod, and the oil cylinders are used for driving the two adjacent sections of arm supports to rotate relatively so as to realize unfolding or folding actions.
The folding mode of this patent does: the first arm (namely the first section of arm support 12) and the second arm (namely the second section of arm support 14) are folded forward, the second arm and the third arm (namely the third section of arm support 22) are folded forward, the third arm and the fourth arm (namely the fourth section of arm support 32) are folded forward, the fourth arm and the fifth arm (namely the fifth section of arm support 34) are folded forward, the fifth arm and the sixth arm (namely the first sub-arm support 362) are folded backward, the sixth arm and the seventh arm (namely the second sub-arm support 364) are parallel, the seventh arm and the eighth arm (namely the seventh section of arm support 38) are folded forward, and the eighth arm is positioned on the side of the turret (namely the turntable 40).
Optionally, the first arm and the second arm are folded forwards, the second arm and the third arm are folded forwards, the third arm and the fourth arm are folded backwards, the fourth arm and the fifth arm are folded forwards, the fifth arm and the sixth arm are folded backwards, the sixth arm and the seventh arm are parallel, and the seventh arm and the eighth arm are folded forwards.
Optionally, one or more of the first arm, the second arm, the third arm, the fourth arm, the fifth arm, the sixth arm, the seventh arm, or the eighth arm is provided with the bending structure 222.
According to the utility model provides a cantilever crane device, make full use of the space of connecting seat in one side of the width direction of mobile concrete pump, under the condition that improves the whole length of cantilever crane device under the expansion state, do not increase the holistic width of mobile concrete pump and height, satisfy the requirement of road condition of traveling easily, and improve mobile concrete pump's cement conveying distance.
In the present application, the terms "first", "second", "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; the term "plurality" means two or more unless expressly limited otherwise. The terms "mounted," "connected," "fixed," and the like are to be construed broadly, and for example, "connected" may be a fixed connection, a removable connection, or an integral connection; "coupled" may be direct or indirect through an intermediary. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
In the description of the present invention, it should be understood that the terms "upper", "lower", "left", "right", "front", "back", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or unit indicated must have a specific direction, be constructed and operated in a specific orientation, and therefore, should not be construed as limiting the present invention.
In the description of the present specification, the description of the terms "one embodiment," "some embodiments," "specific embodiments," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The boom device is characterized in that the boom device is connected with a rotary table, and the boom device comprises:
the first arm frame component, the second arm frame component and the third arm frame component are sequentially hinged, the head end of the first arm frame component is hinged with the rotary table, the tail end of the first arm frame component is hinged with the second arm frame component, the first arm frame component is positioned in a first rotating surface, the third arm frame component is positioned in a second rotating surface, the second arm frame component is transited from the first rotating surface to the second rotating surface and is hinged with the third arm frame component,
and when the arm support device is in a folded state, at least part of the last two sections of arm supports of the third arm support assembly are arranged on the side of the rotary table.
2. The boom apparatus of claim 1,
the first boom assembly comprises: a first section of arm support and a second section of arm support;
the second boom assembly comprises: a third section of arm support;
the third boom assembly comprises: a fourth arm frame, a fifth arm frame, a sixth arm frame and a seventh arm frame;
the first arm frame, the second arm frame, the third arm frame, the fourth arm frame, the fifth arm frame, the sixth arm frame and the seventh arm frame are hinged in sequence, and one end, far away from the second arm frame, of the first arm frame is hinged with the rotary table.
3. The boom apparatus of claim 2,
the sixth section of arm support comprises a first sub-arm support and a second sub-arm support which are hinged with each other, the first sub-arm support is hinged with the fifth section of arm support, the second sub-arm support is hinged with the seventh section of arm support,
when the arm support device is in a folded state, the first sub-arm support and the second sub-arm support are in the same length direction.
4. The boom apparatus of claim 3,
in a folded state, the sixth section of arm frame is arranged above the second section of arm frame, the third section of arm frame, the fourth section of arm frame and the fifth section of arm frame, the first rotating surface and the second rotating surface are parallel to each other and are spaced apart, and at least part of the second sub-arm frame and the seventh section of arm frame are arranged on the side of the rotary table.
5. The boom apparatus of claim 4,
the second segment arm support being foldable in a first direction relative to the first segment arm support, the third segment arm support being foldable in a first direction relative to the second segment arm support, the fourth segment arm support being foldable in a first direction relative to the third segment arm support, the fifth segment arm support being foldable in a first direction relative to the fourth segment arm support, the first sub arm support being foldable in a second direction relative to the fifth segment arm support, the second sub arm support being foldable in a first direction relative to the first sub arm support, the seventh segment arm support being foldable in a second direction relative to the second sub arm support,
wherein the first direction is opposite to the second direction.
6. The boom apparatus of claim 4,
the arm support device is in a folded state, a hinge point of the seventh arm support and the second sub arm support is located in front of the rotary table, a hinge point of the first arm support and the second arm support, a hinge point of the second arm support and the third arm support, a hinge point of the third arm support and the fourth arm support, a hinge point of the fourth arm support and the fifth arm support, a hinge point of the fifth arm support and the first sub arm support, and a hinge point of the first sub arm support and the second sub arm support are located behind the rotary table.
7. The boom apparatus of any of claims 2 to 6,
any one or more of the first section of arm support, the second section of arm support, the third section of arm support, the fourth section of arm support, the fifth section of arm support, the sixth section of arm support and the seventh section of arm support is/are provided with a bending structure.
8. The boom apparatus of claim 2,
in a folded state, an included angle between the seventh section of arm support and the sixth section of arm support is 0-90 degrees.
9. The boom apparatus of claim 2, further comprising:
and in any two adjacent sections of arm frames, one end of each oil cylinder is hinged with the arm frame in the previous section, the other end of each oil cylinder is hinged with the arm frame in the next section, and the oil cylinders drive the two adjacent sections of arm frames to rotate relatively.
10. A concrete pump truck, characterized by comprising:
a chassis;
the rotary table is arranged on the chassis;
the boom apparatus of any of claims 1 to 9, a first section of the boom apparatus being hingedly connected to a top of the turntable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020557075.0U CN212453660U (en) | 2020-04-15 | 2020-04-15 | Arm support device and concrete pump truck |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020557075.0U CN212453660U (en) | 2020-04-15 | 2020-04-15 | Arm support device and concrete pump truck |
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| CN212453660U true CN212453660U (en) | 2021-02-02 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115142678A (en) * | 2021-03-31 | 2022-10-04 | 三一汽车制造有限公司 | Arm support device and engineering machinery |
| CN115142680A (en) * | 2021-03-31 | 2022-10-04 | 三一汽车制造有限公司 | Construction machine |
-
2020
- 2020-04-15 CN CN202020557075.0U patent/CN212453660U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115142678A (en) * | 2021-03-31 | 2022-10-04 | 三一汽车制造有限公司 | Arm support device and engineering machinery |
| CN115142680A (en) * | 2021-03-31 | 2022-10-04 | 三一汽车制造有限公司 | Construction machine |
| WO2022205639A1 (en) * | 2021-03-31 | 2022-10-06 | 三一汽车制造有限公司 | Boom apparatus and engineering machine |
| CN115142680B (en) * | 2021-03-31 | 2024-02-06 | 三一汽车制造有限公司 | Engineering machinery |
| CN115142678B (en) * | 2021-03-31 | 2024-02-06 | 三一汽车制造有限公司 | Arm support device and engineering machinery |
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